Tag: genus
-
Bombus
Few other bees are as well-known and as beloved as bumble bees. These hairy, rotund bees are represented by nearly 60 species in the US, about 20 of which can be found in our region. Bumble bees form annual, social colonies which begins each spring with a queen and grows throughout the summer with help…
-
Coelioxys
Coelioxys are nest parasites of Megachile and, like their hosts, can be found in a variety of fairly open habitats from late spring through fall. Some of the dozen or so species found in our area are common garden bees, while a few are exceedingly rare. Female Coelioxys use their pointed abdomens to slice open…
-
Stelis
Stelis is a genus of megachilid cleptoparasites, laying eggs in the nests of Megachile, Osmia, Hoplitis, Heriades, and Trachusa. They are stocky but elongate, evenly wide down the length of their bodies, and often with relatively sparse hairs. With the exception of one relatively widespread species, Stelis are generally not often encountered. Stelis are shaped…
-
Anthidium
Anthidium love gardens. Three species of these strongly-marked yellow and black bees have spread widely in the cities and suburbs of North America since being accidentally introduced from Europe in the 20th century. Anthidium nest above ground, either in plant stems or in cavities in trees, walls, or even buildings. Although named for their habit…
-
Megachile
Megachile is a widespread and highly diverse genus of bees. They range in size from about one-quarter the size of a honey bee, to nearly twice as large. Megachile females transport pollen beneath their abdomens (often holding up their abdomens while foraging). They are united by their varied nesting strategies. Females build linear nests that…
-
Colletes
Colletes are small to medium-sized bees with strong abdominal banding. They are named for the thin cellophane-like lining that they use to line brood cells. Colletes in our area range from common garden bees to species so rare they are practically unknown to science. All Colletes nest in the ground – a few species form…
-
Agapostemon
Agapostemon are a group of stocky, metallic green bees. With a bit of practice, females of all four species in eastern North America are field identifiable, though males can pose more of a challenge. This group is widespread and commonly found in a variety of habitats, including backyards and gardens. Agapostemon often land on flowers…